Nextend Social Login and Register <= 3.1.12 - Reflected Self-Based Cross-Site Scripting via error_description

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Summary

CVECVE-2024-1775
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-03-02 08:15:06 UTC
Updated2026-04-08 18:20:49 UTC
DescriptionThe Nextend Social Login and Register plugin for WordPress is vulnerable to a self-based Reflected Cross-Site Scripting via the ‘error_description’ parameter in all versions up to, and including, 3.1.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers, with access to a subscriber-level account, to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. NOTE: This vulnerability can be successfully exploited on a vulnerable WordPress instance against an OAuth pre-authenticated higher-level user (e.g., administrator) by leveraging a cross-site request forgery in conjunction with a certain social engineering technique to achieve a critical impact scenario (cross-site scripting to administrator-level account creation). However, successful exploitation requires "Debug mode" to be enabled in the plugin's "Global Settings".

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.1[email protected]Secondary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.1CNADECLARED5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Nextendweb Nextend Social Login All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Nextendweb Nextend Social Login And Register affected 3.1.12 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/changeset/3042326/nextend-facebook-connect af854a3a-2127-422b-91ae-364da2661108 plugins.trac.wordpress.org Patch
www.wordfence.com/threat-intel/vulnerabilities/id/3bad1d0d-3817-4c7f-a012-5a85b... af854a3a-2127-422b-91ae-364da2661108 www.wordfence.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Tobias Weißhaar (en)

Additional Advisory Data

SourceTimeEvent
CNA2024-02-22T00:00:00.000ZVendor Notified
CNA2024-03-01T00:00:00.000ZDisclosed
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